circuitpython

djsundog/circuitpython

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Author	SHA1	Message	Date
Scott Shawcroft	710b5d8aff	Two I2C fixes: 1) Bus error will be thrown on read/write errors with errno set. (Read didn't used to fail at all.) 2) try_lock correctly returns boolean whether lock was grabbed. Fixes #87	2017-02-19 17:02:29 +01:00
Scott Shawcroft	26229efe78	Add try_lock and unlock to I2C and SPI classes to make sure things are shared well between threads and underlying MicroPython (SPI Flash for example.) It is recommended to use the bus device classes to manage the locks and other transaction state. https://github.com/adafruit/Adafruit_MicroPython_BusDevice Fixed #58 Fixed #59 Fixed #60	2016-12-02 15:46:12 -08:00
Scott Shawcroft	ccbb5e84f9	This introduces an alternative hardware API called nativeio structured around different functions that are typically accelerated by native hardware. Its not meant to reflect the structure of the hardware. Docs are here: http://tannewt-micropython.readthedocs.io/en/microcontroller/ It differs from upstream's machine in the following ways: * Python API is identical across ports due to code structure. (Lives in shared-bindings) * Focuses on abstracting common functionality (AnalogIn) and not representing structure (ADC). * Documentation lives with code making it easy to ensure they match. * Pin is split into references (board.D13 and microcontroller.pin.PA17) and functionality (DigitalInOut). * All nativeio classes claim underlying hardware resources when inited on construction, support Context Managers (aka with statements) and have deinit methods which release the claimed hardware. * All constructors take pin references rather than peripheral ids. Its up to the implementation to find hardware or throw and exception.	2016-11-21 14:11:52 -08:00

Author

SHA1

Message

Date

Scott Shawcroft

710b5d8aff

Two I2C fixes:

1) Bus error will be thrown on read/write errors with errno set. (Read didn't used to fail at all.)
2) try_lock correctly returns boolean whether lock was grabbed.

Fixes #87

2017-02-19 17:02:29 +01:00

Scott Shawcroft

26229efe78

Add try_lock and unlock to I2C and SPI classes to make sure things

are shared well between threads and underlying MicroPython (SPI Flash
for example.)

It is recommended to use the bus device classes to manage the locks
and other transaction state.

https://github.com/adafruit/Adafruit_MicroPython_BusDevice

Fixed #58
Fixed #59
Fixed #60

2016-12-02 15:46:12 -08:00

Scott Shawcroft

ccbb5e84f9

This introduces an alternative hardware API called nativeio structured around different functions that are typically accelerated by native hardware. Its not meant to reflect the structure of the hardware.

Docs are here: http://tannewt-micropython.readthedocs.io/en/microcontroller/

It differs from upstream's machine in the following ways:

* Python API is identical across ports due to code structure. (Lives in shared-bindings)
* Focuses on abstracting common functionality (AnalogIn) and not representing structure (ADC).
* Documentation lives with code making it easy to ensure they match.
* Pin is split into references (board.D13 and microcontroller.pin.PA17) and functionality (DigitalInOut).
* All nativeio classes claim underlying hardware resources when inited on construction, support Context Managers (aka with statements) and have deinit methods which release the claimed hardware.
* All constructors take pin references rather than peripheral ids. Its up to the implementation to find hardware or throw and exception.

2016-11-21 14:11:52 -08:00

3 Commits